DE102009028808A1 - Inner frame for extractor hood and extractor hood - Google Patents

Abstract

The invention relates to an inner frame for an extractor hood, which has an interface (S) for attachment to a fan box (2) and at least one attachment area (312, 313) for attaching at least one filter element (7). Furthermore, an extractor hood is described which comprises a fan box (2), an inner frame (3) and at least one filter element (7). The extractor hood is characterized in that the inner frame (3) is connected to the fan box (2) and at least one fastening area (312, 313) for a filter element (7) is provided on the inner frame (3).

Description

The The present invention relates to an inner frame for a Extractor hood and an extractor hood.

at Extractor hoods, which are designed as so-called dining, is on a fan box, which also acts as a fan housing can be designated, the actual hood attached. This hood is limited by a viewing hood when eating up and out and functional elements, such as electronic elements taken in the hood. In addition, in the hood filter elements held, which cover a suction opening of the hood. Above the hood is the fan box from a chimney covered.

Currently Such foods are made so that the viewing hood with the Fan box is screwed. The viewing hood stops a sustainable component, for example, a sheet thickness of more than 0.8 mm. In addition, stiffeners and fasteners bolted to the viewing hood to give it the required rigidity to lend and attach the functional and filter elements to it to be able to. For example, in the back of the Visible hood with a vertical rear wall with screwed the sight hood, which closes the suction chamber and the viewing hood additionally stabilized. At the bottom will be along the back edge of the viewing hood a connecting rail screwed to the viewing hood. This connecting rail defines the conclusion to the wall on which the extractor hood is mounted. In addition, filter elements on this connecting rail be attached. Furthermore, one is central along the width the viewing hood extending stiffening rail provided. For mounting the electronics or at least to protect against interference with the Electronics is also provided a shield, which also screwed to the viewing hood. To guard against entry of impurities and for better air conduction to the air inlet the fan box can also be a baffle in the form of a Tray on the viewing hood or the stiffening and connecting elements be attached. In these extractor hoods thus provides the viewing hood the supporting element of the hood.

The Shape of the viewing hood can be due to design aspects and the installation space vary. Here are the connecting and stiffening elements, the Shielding plate and the rear wall of the Viewing hood geometry dependent and must accordingly be adjusted. Therefore, it has been necessary for produce any form of extractor hood appropriate stiffening and functional elements, to make the appropriate hoods and the sighting hood to connect to the fan box.

In the DE 299 03 104 U1 is a type of attachment of the hood, which is referred to there as a hood element described. Here, a support frame is attached to the hood element, which can be inserted from below into the fan box. In addition, the hood element is connected to the viewing hood with the fan box.

One Disadvantage of the known extractor hoods in the form of food exists in that a large variety of parts is necessary, what concerning the manufacture of the extractor hood and the Development of different forms of extractor disadvantageous is. In addition, the production is due to the large number Of junctions consuming and because of the sometimes bad Accessibility of joints difficult.

task Therefore, it is a solution to the present invention find, at which the part variety, which for the production the extractor hood is necessary, can be minimized and the Extractor hood nevertheless easily mounted and maintained can be.

Of the The invention is based on the finding that this problem is solved be created by a supporting member is created, the Connection with the fan box is designed and at the more Components of the extractor hood including the sighting hood can be attached.

According to one The first aspect is therefore achieved by a Inner frame for an extractor hood, which interfaces for attachment to a fan box and at least one mounting area For attachment of at least one filter element.

The Extractor hood, in which the inner frame is inserted, provides preferably a meal, especially a Wandesse dar. As Esse In this context, an extractor hood is called, at the fan box at least partially from the hood is surrounded, which comprises on the outside of a viewing hood and in their interior functional elements, such as the control electronics the extractor hood and filter element are added. The fan box represents the housing in which the blower and optionally also the engine and associated electronic components are added to operate the fan.

Within the meaning of the invention, the inner frame of the extractor hood is understood to be a load-bearing component of the extractor hood, which defines a defined one Interface for attachment to the fan box has. The inner frame is preferably designed flat and in particular has a trough shape.

At The inner frame according to the invention is a mounting area provided for attachment of at least one filter element. The Filter element is preferably a filter cartridge that over the mounting area is hung on the inner frame. Also other components of the hood, such as in particular Electronic components can be held on the inner frame become. Preferably, the inner frame is additionally used for targeted air flow from a suction port on its underside, which is covered by the filter elements, to the air inlet on the fan box.

By doing the inner frame an interface for attachment to the fan box has, this can be firmly connected to the fan box and thereby form a skeleton on which further components, in particular veneering parts of the extractor hood are attached can. Since the inner frame also has a Attachment area for filter elements may have all essential components of the extractor hood on the inner frame attached or worn by this. That's the requirements to the viewing hood, at the time most of the components of the hood were fastened, lowered.

The The basic framework lies with the mounted extractor hood in the Inside. In particular, on the skeleton the viewing hood attached. In addition, the fireplace, as a veneer of the fan box serves to be attached to the framework.

The Attachment of the viewing hood to this framework is preferred a detachable connection. Particularly preferred is the compound between the viewing hood and the scaffold in the area the fan box a plug, clamp and / or clamp connection. By attaching the viewing hood to the skeleton, located inside the hood, the viewing hood can if necessary be removed from the skeleton without parts of the Backbone, especially the inner frame, also removed Need to become.

Of the Inner frame, which interfaces with the fan box In addition, the extractor hood gives in the hood required stability. Because this stability achieved by a single component, namely the inner frame is, is the required number of parts for the production of the hood minimized and simplified production. In addition, the storage is also and product development for different forms of Extractor hood, in particular the viewing hood, simplified because only the shape of a component, namely the inner frame changed must become. Finally, by the invention Inner frame also expands the freedom of design of the viewing hood, because this no longer represents a supporting component and thus the shape and the material of the viewing hood can be freely selected.

Of the Inner frame provides a supporting component of the skeleton As a supporting component in this context is a component referred to the other components of the hood, in particular the hood, attached or held. In addition, preferably at least part of the weight of these components through this component carried. The inner frame can be made of a material for this purpose be made, the wall thickness of the supporting function allows. Additionally or alternatively in the inner frame reinforcements, for example in shape of beads or other depressions, introduced. The inner frame preferably comprises a sheet metal component produced by deep drawing becomes. The inner frame preferably has a trough-shaped basic body on, with the interface for attachment to the fan box is provided at the bottom of the body. the interface in particular represents a contact area at which the fan box rests on the inner frame. Additionally are at the interface Fastening elements, in particular Schraubendurchlässe provided over which the inner frame with the fan box can be screwed. When assembled, the inner frame installed so that the bottom of the tub points upwards.

According to one preferred embodiment is the interface for attachment on a fan box on the edge of one in the inner frame pre-expanded air passage opening arranged. Through the air outlet Air can get from the inner frame into the fan box. Thus, the connection between the fan box and the inner frame in the immediate vicinity of the air passage opening whereby the air flow is optimized.

According to one preferred embodiment, the inner frame has a Interface for connection to a hood of the extractor hood on.

When Viewing hood is according to the present invention a facing part of the extractor hood called. The viewing hood preferably covers the distance between the outer Edge of the hood and the fan box at least upwards.

The interface for connecting to the Viewing hood is arranged on the outer edge or frame of the inner frame. Preferably, this interface is formed only by a part of the outer edge of the inner frame. In particular, the lateral outer edges of the inner frame are the interface through which the viewing hood can be attached to the inner frame. The interface also represents a contact area, on which the viewing hood rests on the inner frame. In addition, fastening elements, in particular screw passages are provided at the interface, via which the inner frame can be screwed to the viewing hood. The viewing hood can be additionally fastened to the fan box via further fastening means, in particular fastening rails.

By doing on the inner frame an interface for connecting to the viewing hood is provided, by the inner frame at least part of the weight the viewing hood are carried and the requirements for stability the viewing hood are therefore further reduced.

According to one Embodiment is the height of the inner frame at the back is larger than at its front. By this configuration, the attachment the filter elements are made on a level in which the inner frame in the assembled state with a further component, in particular a light rail, is aligned. In this case, the attachment area for fixing the filter elements in the back provided the inner frame. Between these attachment areas and fasteners on another component of the hood can the filter elements are hung and fixed. It is therefore not necessary also on the front of the inner frame Provide attachment areas for the filter elements. This simplifies the construction and production of the inner frame.

According to one Embodiment, the inner frame comprises a base body and a rear wall attached to the main body. The advantage of this two-part construction of the inner frame consists especially in the production. While the body, in particular having a trough shape, for example by Deep drawing can be made, the back wall can be one Represent bending part. This allows for the both parts of the inner frame required features the respective parts can be realized in a simple manner. The back wall becomes insoluble with the base body after its preparation connected. This can be done for example by riveting or clinching. For mounting the cooker hood is thus the inner frame as a single component available and can be in one single step to be mounted.

Preferably is at a consisting of body and back wall Inner frame of at least one mounting portion provided in the rear wall. The attachment area is in particular by Einhängöffnungen created on a profile, introduced into the projections of a filter element can be. The creation of a profile with openings provided thereon can be carried out more easily on a bent part as a deep-drawn part. Therefore, it is for the production the inner frame advantageous when the mounting area in the Rear wall is provided.

According to one Embodiment, the rear wall comprises a U-profile, in the front of the at least one mounting portion is provided. The U-profile is aligned so that the open side the profile points to the rear. Thus, the attachment area becomes provided in the bottom or base of the U-profile. The U-profile In this case, it preferably forms the lower region of the rear wall. By the lower portion of the rear wall of such a Profile can, on the one hand, sufficient space for insertion protrusions on the filter elements and thereby a Connection of the filter elements with the inner frame available be put. On the other hand, by the length of the thighs the U-profile also determines the distance the suction port the extractor hood into which the filter elements are inserted to the rear end of the hood having. The rear end of the cooker hood Latches against the wall to which the cooker hood is attached. On this wall are below the hood usually also Tiles or another wall cladding provided. In spite of the Wall covering access to the mounting area for To allow the filter elements, the attachment area at a sufficient distance from the wall. This will be included the present invention by the legs of the U-profile of Rear wall allows.

According to one Embodiment engages the rear wall at least partially around the edge of the air passage opening of the inner frame. By this encompassing, on the one hand, the connection between the Rear wall and the main body of the inner frame be strengthened. On the other hand, through the over the air outlet opening projecting upwards part of Rear wall at the same time a fixing device for hanging of the inner frame are created on the fan box. The part of the back wall that goes through the air outlet engages, in particular provides a connection nose or connecting tab represents.

According to a further aspect, the invention relates to an extractor hood, which includes a fan box, an inner frame and at least one filter element. The extractor hood is characterized in that the inner frame is connected to the fan box and at least one fastening region for a filter element is provided on the inner frame.

By the fan box and the inner frame becomes a basic framework created on the other components of the hood, such as For example, the viewing hood, can be attached. In addition, a fastening area for filter elements is provided on the inner frame, thus all essential Components of the hood on this backbone be attached. This simplifies the structure and the Production of the extractor hood.

According to one Embodiment is the at least one filter element between the inner frame and a light bar introduced. In this embodiment is only on one side of the inner frame, especially the back the inner frame to provide a mounting area for the filter elements. The further attachment area can be provided in the light bar be designed because of their function as a bent sheet metal part is, in which the attachment areas are easily introduced can. This simplifies the structure of the inner frame and thus the cooker hood on.

Preferably has the hood according to the invention a Inner frame according to the invention.

advantages and features related to the invention Inner frame are described apply - as applicable - accordingly for the extractor hood according to the invention and vice versa, and may only be explained once.

The in the description of the invention used in front, back, laterally, horizontally and vertically refer, if not otherwise indicated on the hood in the wall-mounted Status.

The Invention will be described again below with reference to the accompanying figures explained. Show it:

1 a schematic, perspective bottom view of an embodiment of the extractor hood according to the invention;

2 a schematic perspective rear view of an embodiment of an inner frame according to the invention;

3 a schematic, perspective top view of an embodiment of an inner frame according to the invention;

4 a schematic perspective view of a rear wall of an embodiment of an inner frame;

5 a schematic side view of an embodiment of the inner frame according to the invention; and

6 : a detailed view of the area of the back wall 5 ,

In The figures are the same components of the hood with the provided with the same reference numerals and their structure and function only described once.

In the 1 shown embodiment of the extractor hood according to the invention 1 has a fan box 2 on. Furthermore, the extractor hood 1 an inner frame 3 on top of it with the fan box 2 is connected. As is clear from the 2 and 3 shows, the inner frame points 3 a trough-shaped base body 32 on. In the bottom of the main body 32 is a rectangular air passage opening 33 intended. The connection between the fan box 2 and the inner frame 3 becomes at the inner edge 36 of the inner frame 3 manufactured, which the Lüftdurchlassöffnung 33 surrounds.

In addition, the extractor hood includes 1 a viewing hood 4 connected to the skeleton consisting of fan box 2 and inner frame 3 is attached. The viewing hood 4 has at the back of a rectangular recess, which has a size which is at least the size of the bottom of the fan box 2 equivalent. At the bottom extends from the front of the viewing hood 4 and from the sides horizontally a frame 40 inside.

In the inner frame 3 are filter elements 7 introducing filter cartridges introduced. In the view shown are only two of the three filter elements 7 shown. In addition, the extractor hood includes 1 a light bar 6 , in the bulbs 61 be used. The light bar 6 is along the front edge 40 the viewing hood 4 arranged and attached to this. At the back of the light bar 6 Openings are provided over which the filter elements 7 with the light bar 6 can be connected. The filter elements 7 are thus between the back of the inner frame 3 and the back of the light bar 6 brought in.

In the back of the viewing hood 4 a recess is provided over the back of the In nenrahmens 3 is visible.

In 2 is shown a schematic rear view of an embodiment of the inner frame according to the invention. The inner frame 3 consists of a trough-shaped body 32 whose bottom points upwards when installed. In the bottom is a rectangular air passage opening 33 introduced by the inner edge 36 of the inner frame 3 is limited. In the main body 32 are also depressions, for example in the form of beads 34 intended. These beads 34 serve to stiffen the inner frame 3 and extend between the air passage opening 33 and the outer edge 35 of the inner frame 3 , The outer edge 35 can be on the sides of the inner frame 3 as an interface for connection to the viewing hood 4 serve.

At the back of the inner frame 3 is on the body 32 a back wall 31 attached. This is in the 2 only by a connection nose 315 , which can also be referred to as a connection tab, at the top and a U-shaped profile 311 visible at the bottom. The back of the inner frame 3 is, however, by the rear wall of the inner frame 3 with one down over the bottom of the inner frame 3 protruding supernatant 37 educated.

In 3 is an embodiment of an inner frame 3 shown in a perspective plan view. In this view is the front of the U-profile 311 the back wall 31 to see. In this front are Einhängöffnungen 312 introduced as horizontal slots. In these hanging openings 312 can projections of the filter element 7 be introduced and this with the inner frame 3 get connected. In addition, at the front of the U-profile 311 Projections provided as stops 313 for the filter elements 7 serve and the insertion of the filter elements 7 thus relieved.

In 4 is an embodiment of the rear wall 31 of the inner frame 3 shown. To the U-profile 311 whose open side points to the rear, closes at the end of the upper leg a vertically upstanding wall bar 314 at. In the middle of the back wall 31 go this wallbridge 314 in a connection nose 315 over, from the wallbridge 314 after initially running horizontally forward and then towards the back of the back wall 31 directed horizontally to the rear continues. The connection nose 315 has a shorter length than the legs of the U-profile 311 , About the further course of the wall bridge 314 across the width of the back wall 31 are depressions in the wall bridge 314 introduced, where an attachment to the body 32 can be done. These wells are therefore also as clinch points 316 designated.

In the 5 and 6 is the back wall 31 on a base body 32 attached. In this view, it can be seen that the supernatant 37 as well as the U-profile 311 over the lower edge of the further inner frame 3 , in which the suction port is located, protrude downwards. Moreover, in 6 indicated as the connection nose 315 the inner edge 36 the air passage opening 33 surrounds to the rear.

According to the Present invention, the inner frame, the central support structure Through the inner frame according to the invention can the individual components that were necessary in the prior art, especially the rear wall, the connecting rail, the stiffening rail and the cover plate omitted.

Of the Inner frame according to the invention preferably has a level with interface to the fan box, one level with interface to the viewing hood, bevels, for ease of cleaning and to improve the air duct, Einhängvorrichtungen for Hang on the fan box and a fold in the rear, through which the required distance of the hanging ensured for the filter elements to the wall and that closes off the intake space. The inner frame can be made in different widths. Especially can be an internal frame for cooker hoods Width of 30 cm, 60 cm and 90 cm are produced.

Of the Inner frame fulfilled in the invention Extractor hood several functions. Guaranteed in the invention the inner frame the stability of the hood. moreover the completion of the suction is created by the inner frame. The suspension of the grease filter takes place in the inventive Extractor hood on the inner frame. Finally, through the inner frame a sufficient distance of the suction port ensured to the wall, for fastening or hanging the filter elements because of the usually provided on the wall Tile mirror is necessary.

Therefore, a number of advantages can be achieved with the present invention. Thus, many sheet metal parts can be omitted in the design principle and thus positive effects on the complexity of manufacturing, such as logistics and warehousing, can be achieved. Furthermore, a high Materialratio is possible because a number of components deleted and the material thickness, in particular the stainless steel sheet thickness, the viewing hood can be reduced, since this no longer represents a supporting component but only has to wear itself. In addition, the assembly is shortened and made easier. Finally, the air flow is optimized and also the risk of whistling reduced by the elimination of individual sheet metal parts.

LIST OF REFERENCE NUMBERS

1

Hood

2

fan box

3

inner frame

31

rear wall

311

U-profile

312

Einhängöffnung

313

attack

314

wall web

315

connection tab

316

Clinching point

32

trough-shaped body

33

Air passage opening

34

beading

35

outer edge

36

inner edge

37

Got over

4

Viewing cover

40

frame bottom

6

light bar

61

Lamp

62

cabling

7

filter cartridges

S

interface

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 29903104 U1 [0005]

Claims (12)

Inner frame for an extractor hood, which has an interface (S) for attachment to a fan box ( 2 ) and at least one attachment area ( 312 . 313 ) for fastening at least one filter element ( 7 ) having. Inner frame according to claim 1, characterized in that the interface (S) for attachment to a fan box ( 2 ) at the edge of a in the inner frame ( 3 ) projected air passage opening ( 33 ) is arranged. Inner frame according to one of claims 1 or 2, characterized in that this an interface ( 35 ) for connection to a viewing hood ( 4 ) of the extractor hood ( 1 ) having. Inner frame according to one of claims 1 to 3, characterized in that the height of the inner frame ( 3 ) is larger at the back than at the front. Inner frame according to one of claims 1 to 4, characterized in that this a basic body ( 32 ) and one on the main body ( 32 ) attached back wall ( 31 ). Inner frame according to claim 5, characterized in that the at least one fastening region ( 312 . 313 ) in the back wall ( 31 ) is provided. Inner frame according to one of claims 5 or 6, characterized in that the rear wall ( 31 ) a U-profile ( 311 ), in whose front side the at least one fastening region ( 312 . 313 ) is provided. Inner frame according to one of claims 5 to 7, characterized in that the rear wall ( 31 ) at least partially around the edge ( 36 ) of the air passage opening ( 33 ) of the inner frame ( 3 ) attacks. Extractor hood, which has a fan box ( 2 ), an inner frame ( 3 ) and at least one filter element ( 7 ), characterized in that the inner frame ( 3 ) with the fan box ( 2 ) and on the inner frame ( 3 ) at least one attachment area ( 312 . 313 ) for a filter element ( 7 ) is provided. Extractor hood according to claim 9, characterized in that the filter element ( 7 ) between the inner frame ( 3 ) and a light bar ( 6 ) is introduced. Extractor hood according to one of claims 9 or 10, characterized in that a viewing hood ( 4 ) on the fan box ( 2 ) and via an interface ( 35 ) with the inner frame ( 3 ) connected is Extractor hood according to one of the claims 9 to 11, characterized in that this an inner frame according to one of claims 1 to 8.

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